公开(公告)号：JPH09178322A

公开(公告)日：1997-07-11

申请号：JP33457295

申请日：1995-12-22

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAMITSUJI TOSHIO ,  NODA TOSHINORI ,  ENDO KATSUMI ,  ODA MASATAKA ,  MORISHITA KENICHI ,  HAMANO YASUKI ,  KANEOKA SHINICHI ,  KUBOTA YOSHITAKA ,  KURIMOTO KAZUNORI

IPC: F25D11/02 ,  F25B1/00

Abstract: PROBLEM TO BE SOLVED: To save the energy of a refrigerator by realizing appropriate number of revolution of a compressor and appropriate flow rate of an electric-driven expansion valve to cope with the change in the temperature of a cooler associated with opening/closing of an air passage control damper of the refrigerator on which an inverter is mounted to improve the operational efficiency and the cooling system efficiency of the refrigerator. SOLUTION: The number of revolutions of a compressor and the flow rate of an electric-driven expansion valve are determined by the number of revolutions and a flow rate operating means 25 using the output of an in-freezer differential temperature operating means 24, the number of revolutions and the flow passage resistance value are corrected by a number of revolutions and a flow rate correcting means 41 using the output from a cooler temperature detecting means 42, the number of revolutions of the compressor is controlled by an inverter circuit 26 by the command from the number of revolutions and the flow rate correcting means 41, and the flow rate is controlled by an electrically driven expansion valve control circuit 45.

公开(公告)号：JPH09138053A

公开(公告)日：1997-05-27

申请号：JP29674495

申请日：1995-11-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAMANO YASUKI ,  KUBOTA YOSHITAKA ,  ODA MASATAKA ,  NODA TOSHINORI ,  ENDO KATSUMI ,  KAMITSUJI TOSHIO ,  MORISHITA KENICHI ,  KANEOKA SHINICHI ,  KURIMOTO KAZUNORI

IPC: F25D21/06 ,  F25B47/02

Abstract: PROBLEM TO BE SOLVED: To increase the efficiency of defrosting, save energy, and to contrive freshness of a food at a high value by a method wherein defrosting is executed by operating a compressor through superlow rotation. SOLUTION: When the operation time of a number of revolution variable type (capacity variable type) compressor 17 attains a specified time by a defrosting timer 11, the number of revolutions variable type (capacity variable type) compressor 17 is operated at low rotation and cold air feed means 10 is stopped. When the number of revolutions variable type (capacity variable type) compressor 17 is operated at low rotation, the vaporization temperature of a refrigerant is increased to at least 0 deg.C being temperature at which frost is molten, and the temperature of a vaporizer 3 becomes also at last 0 deg.C. Frost adhered to the vaporizer 3 is defrosted through direct heat-exchange with the vaporizer 3 the temperature of which is at least 0 deg.C. This constitution improves the efficiency of defrosting, saves energy, and maintains freshness of a food at a high value.

公开(公告)号：JPH09138048A

公开(公告)日：1997-05-27

申请号：JP29674095

申请日：1995-11-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： ENDO KATSUMI ,  KUBOTA YOSHITAKA ,  HAMANO YASUKI ,  NODA TOSHINORI ,  MORISHITA KENICHI ,  KAMITSUJI TOSHIO ,  KANEOKA SHINICHI ,  ODA MASATAKA ,  KURIMOTO KAZUNORI

IPC: F25D11/02

Abstract: PROBLEM TO BE SOLVED: To perform hihgly efficient operation control by a method wherein the number of revolutions of a compressor is controlled by a temperature differ ence between the temperature of a cooler and a set temperature. SOLUTION: A refrigerating chamber temperature is detected by a refrigerating chamber temperature detecting means 21, a set temperature is detected by a refrigerating chamber temperature setting means, and on/off of a compressor 17 are determined by a temperature difference therebetween. The temperature of a cooler 13 is detected by a cooler temperature detecting means 42 and the number of revolutions of a compressor 17 is decided by a number of revolutions computing means 25 by means of a temperature difference between a cooler temperature and a cooler set temperature. By controlling the number of revolutions of the compressor by an inverter circuit 26, a cooler temperature is not reduced more than necessary to cool a chamber, and high-efficient operation is performed.

公开(公告)号：JPH09138045A

公开(公告)日：1997-05-27

申请号：JP29673595

申请日：1995-11-15

Applicant: MATSUSHITA REFRIGERATION

Inventor： ODA MASATAKA ,  KANEOKA SHINICHI ,  MORISHITA KENICHI ,  HAMANO YASUKI ,  NODA TOSHINORI ,  KUBOTA YOSHITAKA ,  ENDO KATSUMI ,  KURIMOTO KAZUNORI ,  KAMITSUJI TOSHIO

IPC: F25D17/06 ,  F25D11/00 ,  F25D21/06

Abstract: PROBLEM TO BE SOLVED: To maintain freshness of a food by a method wherein the number of revolutions of a refrigerator fan is reduced to a minimum and the increase of a refrigerator temperature is suppressed to a minimum, in operation right after defrosting of a refrigerator on which an inverter is mounted. SOLUTION: By detecting a defrosting completion signal from a defrosting completion detecting means 10, an output is fed to a number of revolutions of fan correcting means 12. The minimum number of revolutions is selected in getting priority over the number of revolutions decided by a temperature difference between a refrigerator temperature and a set temperature. Cooling air has the efficiency of heat-exchange being improved in such a away that the number of revolutions of a refrigerator fan 8 is suppressed by being delayed by a time in which operation of a timer 13 is completed or temperature by a vaporiser temperature detecting means attains a given value and an airflow is reduced, and the cooling air is fed. Thereafter, the number of revolutions is increased to a value decided by a temperature difference between the refrigerator temperature and the set temperature and a cooling airflow is increased.

公开(公告)号：JPH08285431A

公开(公告)日：1996-11-01

申请号：JP8812795

申请日：1995-04-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： ONISHI YASUTOMO ,  NODA TOSHINORI ,  YAMAMOTO HARUYOSHI ,  HAMANO YASUKI ,  KANEOKA SHINICHI ,  KUBOTA YOSHITAKA ,  MORISHITA KENICHI

IPC: F25D11/02

Abstract: PURPOSE: To provide a controller for a refrigerator capable of setting in-chamber desired temperatures in a time zone of low frequency in use during the night and the like to a level higher than preset temperatures and reducing power consumption. CONSTITUTION: A controller for a refrigerator comprises an in-chamber temperature detecting means 1 for detecting temperatures in a freezing chamber and a refrigerating chamber, an in-chamber temperature setting means 4 for setting in-chamber desired temperatures, an in-chamber temperature regulating means 14 for regulating in-chamber temperatures to desired temperatures, a low use frequency time zone determining means 8 for determining a time zone of low frequency in use during the night and the like, and a preset temperature changing means 11 for changing the desired temperatures in the time zone determined by the low use frequency time zone determining means 8 to a level higher than the in-chamber desired temperatures set by the in-chamber temperature setting means 4.

公开(公告)号：JP2003148846A

公开(公告)日：2003-05-21

申请号：JP2001347027

申请日：2001-11-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： SAKAI TOSHIKAZU ,  KIMURA YOSHITO ,  MORISHITA KENICHI ,  SAITO TETSUYA ,  OYAMADA MAKOTO

IPC: F25D19/00 ,  F25B1/00 ,  F25B43/00 ,  F25D11/00

Abstract: PROBLEM TO BE SOLVED: To provide a constitution of an evaporator which reduces the excess refrigerant retained in an accumulator part of the evaporator and improves the safety in leakage of the refrigerant, in a refrigerator using the combustible refrigerant. SOLUTION: This refrigerator 1 using the combustible refrigerant comprises an evaporator 18, an outlet pipe 18d mounted across an air trunk of the evaporator 18, and an accumulator 18e connected to the outlet pipe 18d and storing the liquid refrigerant. As a result, temperature of the outlet pipe 18d is kept higher than evaporation temperature with the proper amount of refrigerant, the residual refrigerant retained in the accumulator 18e is reduced, and further the accumulator 18e is miniaturized, which reduces the input of a defrosting heater, and improves the safety in leakage of the refrigerant.

公开(公告)号：JP2001304195A

公开(公告)日：2001-10-31

申请号：JP2000120793

申请日：2000-04-21

Applicant: MATSUSHITA REFRIGERATION

Inventor： MORISHITA KENICHI ,  KIDA TAKUMI ,  TATSUI HIROSHI ,  TANIGUCHI MITSUNORI

IPC: F04D29/32 ,  F04D29/54 ,  F04D29/66 ,  F25D17/06

Abstract: PROBLEM TO BE SOLVED: To efficiently suck and discharge a portion of an air flow, passing through an impeller, of which a radial component is large by a bag-like space provided on an outer periphery of the impeller, to inhibit a reduction of actual discharge effective air amount of the impeller and to sufficiently inhibit an air amount reduction of a fan. SOLUTION: Since a portion of an air flow X, passing through an impeller 8, of which a radial speed component is large is efficiently sucked and discharged at a rotation flow circulation space 11 by the rotation flow circulation space 11 and a plurality of pillars 13 disposed in the rotation flow circulation space 11 and approximately radially extending from an opening edge 12, a reduction of actual discharge effective air amount of the impeller 8 is inhibited and an air amount reduction of a fan 14 is sufficiently inhibited.

公开(公告)号：JP2000274871A

公开(公告)日：2000-10-06

申请号：JP7693799

申请日：1999-03-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAMITSUJI TOSHIO ,  INAMORI SHOHEI ,  KIDO OSAO ,  MORISHITA KENICHI ,  FUJIMOTO SHINJI

IPC: F25B21/02

Abstract: PROBLEM TO BE SOLVED: To obtain a thermoelectric manifold having a plurality of stages of thermoelectric module in which heat exchanging efficiency is enhanced by making the heat distribution uniform on the heat absorbing surface and the heat radiating surface and heat is transferred well between thermoelectric modules even when the thermoelectric module is bent by suppressing thermal stress thereof. SOLUTION: The thermoelectric unit comprises a plurality of thermoelectric modules 7 each having a heat absorbing surface 7a and a heat radiating surface 7b which are cooled and heated, respectively, upon current supply. The plurality of thermoelectric modules 7 are juxtaposed in a manifold body 19 such that the heat radiating surface 7b of one thermoelectric module 7 faces the heat absorbing surface 7a of an adjacent thermoelectric module 7. In the manifold body 19, a cooling cavity 20c is provided for the heat absorbing surface 7a on the cooling end side, a heating cavity 10d is provided for the heat radiating surface 7b on the heating end side, and a heat transfer cavity 17a is provided between adjacent thermoelectric modules 7.

公开(公告)号：JP2000274870A

公开(公告)日：2000-10-06

申请号：JP7696099

申请日：1999-03-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAMITSUJI TOSHIO ,  INAMORI SHOHEI ,  KIDO OSAO ,  MORISHITA KENICHI ,  FUJIMOTO SHINJI

IPC: F25B21/02

Abstract: PROBLEM TO BE SOLVED: To effectively rotate an agitating blade in a cavity of a manifold body by providing an agitating member in the cavity, and rotating the member by a motor having a rotor in the body and a stator externally mounted on the body. SOLUTION: In the manifold 1 containing a thermoelectric module 7 having a Peltier effect for performing a cooling action, when energizing to start operating of a cooler, a temperature of a heat transfer surface of a heating side of the module 7 is raised, and a temperature of a heat transfer surface of a cooling side is lowered. A stator 8 formed as a part of a motor is excited, and a rotor 16 contained therein through a heating side manifold 2 is rotated. As a result, a heating side agitating member 5 integral with the rotor 16 is rotated, a heating medium in each cavity is agitated by rotation of the blade 15, and the medium given by the energy by the module 7 is discharged externally from outlets 14, 24.

公开(公告)号：JPH11344272A

公开(公告)日：1999-12-14

申请号：JP16924198

申请日：1998-06-01

Applicant: MATSUSHITA REFRIGERATION

Inventor： KIDO OSAO ,  INOUE HISAYOSHI ,  FUJIMOTO SHINJI ,  INAMORI SHOHEI ,  KAMITSUJI TOSHIO ,  MORISHITA KENICHI

IPC: F25D11/00 ,  F25B21/02 ,  H01L35/30

Abstract: PROBLEM TO BE SOLVED: To provide a heat exchanging device incorporating a practical thermo- electrical module therein in which a heat transfer area of the heat exchanging device having a thermo-electrical module is increased and mixing between thermal medium at a heating side and thermal medium at a cooling side is prevented. SOLUTION: An opening at an indentation (a flowing-in side chamber) of a manifold piece 2 and an opening at an indentation (a flowing-out side chamber) are closed by a thermo-couple module 5, an O-ring 11 (12) is placed near a circumferential surface of the thermo-electrical module and between the manifold pieces 2 (3) and liquid-tightly sealed. The manifold piece 2 is transparent. Lead wires are provided with coverings of different colors and they can be visually confirmed from outside.